Search Results - "Kraatz, Simon"

Comparing Three Freeze-Thaw Schemes Using C-Band Radar Data in Southeastern New Hampshire, USA by Moradi, Mahsa, Kraatz, Simon, Johnston, Jeremy, Jacobs, Jennifer M.

“…Soil freeze-thaw (FT) cycles over agricultural lands are of great importance due to their vital role in controlling soil moisture distribution, nutrient…”
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Comparing NISAR (Using Sentinel-1), USDA/NASS CDL, and Ground Truth Crop/Non-Crop Areas in an Urban Agricultural Region by Kraatz, Simon, Lamb, Brian T., Hively, W. Dean, Jennewein, Jyoti S., Gao, Feng, Cosh, Michael H., Siqueira, Paul

“…A general limitation in assessing the accuracy of land cover mapping is the availability of ground truth data. At sites where ground truth is not available,…”
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A Comparison of MODIS/VIIRS Cloud Masks over Ice-Bearing River: On Achieving Consistent Cloud Masking and Improved River Ice Mapping by Kraatz, Simon, Khanbilvardi, Reza, Romanov, Peter

“…The capability of frequently and accurately monitoring ice on rivers is important, since it may be possible to timely identify ice accumulations corresponding…”
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Evaluation of SMAP Freeze/Thaw Retrieval Accuracy at Core Validation Sites in the Contiguous United States by Kraatz, Simon, Jacobs, Jennifer, Schröder, Ronny, Cho, Eunsang, Cosh, Michael, Seyfried, Mark, Prueger, John, Livingston, Stan

“…Seasonal freeze-thaw (FT) impacts much of the northern hemisphere and is an important control on its water, energy, and carbon cycle. Although FT in natural…”
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Numerical Study on the Hydrodynamic Characteristics of Submarine Pipelines under the Impact of Real-World Tsunami-Like Waves by Zhao, Enjin, Qu, Ke, Mu, Lin, Kraatz, Simon, Shi, Bing

“…Submarine pipelines have been extensively used for marine oil and gas extraction due to their high efficiency, safety, and low price. However, submarine…”
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Comparison between Dense L-Band and C-Band Synthetic Aperture Radar (SAR) Time Series for Crop Area Mapping over a NISAR Calibration-Validation Site by Kraatz, Simon, Torbick, Nathan, Jiao, Xianfeng, Huang, Xiaodong, Robertson, Laura Dingle, Davidson, Andrew, McNairn, Heather, Cosh, Michael H., Siqueira, Paul

“…Crop area mapping is important for tracking agricultural production and supporting food security. Spaceborne approaches using synthetic aperture radar (SAR)…”
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Identifying Subsurface Drainage using Satellite Big Data and Machine Learning via Google Earth Engine by Cho, Eunsang, Jacobs, Jennifer M., Jia, Xinhua, Kraatz, Simon

“…Human‐induced landscape changes affect hydrologic responses (e.g., floods) that can be detected from a suite of satellite and model data sets. Tapping these…”
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Evaluating NISAR's cropland mapping algorithm over the conterminous United States using Sentinel-1 data by Rose, Shannon, Kraatz, Simon, Kellndorfer, Josef, Cosh, Michael H., Torbick, Nathan, Huang, Xiaodong, Siqueira, Paul

“…Accurate knowledge of the distribution, breadth and change in agricultural activity is important to food security and the related trade and policy mechanisms…”
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Evaluating NISAR's cropland mapping algorithm over the conterminous United States using Sentinel-1 data by Rose, Shannon, Kraatz, Simon, Kellndorfer, Josef, Cosh, Michael H, Torbick, Nathan, Huang, Xiaodong, Siqueira, Paul

“…Accurate knowledge of the distribution, breadth and change in agricultural activity is important to food security and the related trade and policy mechanisms…”
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Spatial and temporal freeze-thaw variations in Alaskan roads by Kraatz, Simon, Jacobs, Jennifer M., Miller, Heather J.

“…Seasonal freeze and thaw impact a road’s ability to bear loads. Temperature index models are one of the methods being used to manage seasonal weight…”
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Remotely Sensed Freeze-Thaw from the Soil Moisture Active Passive Instrument to Inform the Timing of Seasonal Load Restrictions in Alaska by Kraatz, Simon, Miller, Heather J., Jacobs, Jennifer M.

“…To balance the competing interests of minimizing road damage while maximizing economic opportunities on low-volume roadways located in seasonal frost areas,…”
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SMAP Detects Soil Moisture under Temperate Forest Canopies by Colliander, Andreas, Cosh, Michael H, Kelly, Vicky R, Kraatz, Simon, Bourgeau-Chavez, Laura, Siqueira, Paul, Roy, Alexandra, Konings, Alexandra G, Holtzman, Natan, Misra, Sidharth, Entekhabi, Dara, O'Neill, Peggy, Yueh, Simon H

“…Soil moisture dynamics in the presence of dense vegetation canopies are determinants of ecosystem function and biogeochemical cycles, but the capability of…”
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Cropland mapping with L-band UAVSAR and development of NISAR products by Huang, Xiaodong, Reba, Michele, Coffin, Alisa, Runkle, Benjamin R.K., Huang, Yanbo, Chapman, Bruce, Ziniti, Beth, Skakun, Sergii, Kraatz, Simon, Siqueira, Paul, Torbick, Nathan

“…Planned satellite launches will provide open access and operational L-band radar data streams at space-time resolutions not previously available. To further…”
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Potential Use of NASA’s Soil Moisture Active Passive Freeze–Thaw Tool to Assist in Minnesota Seasonal Load Restriction Timing by Kraatz, Simon, Miller, Heather J., Poirier, Benjamin J, Moradi, Mahsa, Jacobs, Jennifer M.

“…The U.S. encompasses over 4 million roadway miles, with about half of them located in seasonal frost areas. Roads are especially susceptible to damage when the…”
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Accuracy Assessment of Satellite-Based Freeze-Thaw Retrievals on Low-Volume Roads in the United States by Kraatz, Simon, Miller, Heather J., Jacobs, Jennifer M., Dave, Eshan V., Sias, Jo

“…Accurate identification of soil freeze or thaw (FT) is important for road management, because it greatly affects a road’s load bearing capacity. Despite…”
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L-band vegetation optical depth as an indicator of plant water potential in a temperate deciduous forest stand by Holtzman, Nataniel M, Anderegg, Leander D. L, Kraatz, Simon, Mavrovic, Alex, Sonnentag, Oliver, Pappas, Christoforos, Cosh, Michael H, Langlois, Alexandre, Lakhankar, Tarendra, Tesser, Derek, Steiner, Nicholas, Colliander, Andreas, Roy, Alexandre, Konings, Alexandra G

“…Vegetation optical depth (VOD) retrieved from microwave radiometry correlates with the total amount of water in vegetation, based on theoretical and empirical…”
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Improving SMAP freeze-thaw retrievals for pavements using effective soil temperature from GEOS-5: Evaluation against in situ road temperature data over the U.S by Kraatz, Simon, Jacobs, Jennifer M., Schröder, Ronny, Cho, Eunsang, Miller, Heather J., Vuyovich, Carrie M.

“…Seasonal freeze-thaw (FT) affects over half the northern hemisphere and impacts many key processes of the Earth System such as energy exchange, hydrology and…”
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Vulnerability of population and transportation infrastructure at the east bank of Delaware Bay due to coastal flooding in sea-level rise conditions by Tang, Han Song, Chien, Steven I-Jy, Temimi, Marouane, Blain, Cheryl Ann, Ke, Qu, Zhao, Liuhui, Kraatz, Simon

“…Catastrophic flooding associated with sea-level rise and change of hurricane patterns has put the northeastern coastal regions of the United States at a…”
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An Algorithm for Automated Satellite-Based River Ice Identification Using a Local Cloud Mask: Application over the Lower Susquehanna River Using VIIRS and MODIS by Kraatz, Simon G

“…Spatially detailed characterization of the distribution, amounts and timing of river ice is important for identifying and predicting potential ice hazards…”
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ISCE Docker Tools: Automated Radiometric Terrain Correction and Image Coregistration of Uavsar MLC Data by Kraatz, Simon, Siqueira, Paul, Rose, Shannon

“…In Summer/Fall 2019, the UAVSAR platform was used to collect dense time series over several agricultural and biomass sites in the southeastern US. This data is…”
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